Will a Joe Biden presidency be better for the environment than President Trump’s policies? Is China really set to take the lead on tackling climate change? And can the world's two biggest emitters of greenhouse gases work together for the good of the planet?We're joined by former governor of California Jerry Brown, now with the California-China Climate Institute at Berkeley, and Daily Telegraph journalist Sophia Yan.Presenters: Neal Razzell, Graihagh Jackson, Vincent NiResearcher: Eleanor BiggsProducer: Anna MeiselEditor: Ravin Sampat